Easy question. Due in 15 min. plz help. Calculate the energy and frequency of red light having a wavelength of 6.55 x 10^-5 cm.

Determine the number o moles of ions/atoms/particle in the following: 2.50 miles of k2s (let me know how to do)

Select all that apply. a beta particle: is electromagnetic energy is an electron has zero charge is emitted from the nucleus has a +2 charge has a -1 charge

Melissa is interested in her family tree and how her family has changed over its many generations. melissa probably more closely resembles